SU94A1 - Economizer - Google Patents

Description

The subject matter of the present invention is an economizer consisting of a distribution box and Field's tubes connected to it, these pipes can be smooth or have outside or transverse (annular) or longitudinal ribs provided on the whole or only on a part of the outer surface.

FIG. 1 of the drawing, the proposed economizer is shown in vertical section along the line A-A in FIG. 2, showing the economizer with a part as viewed from above, with a part in section along the line B - 5 in FIG. one.

The economizer distribution box is equipped with bottom pipes I of circular cross section below, having in the illustrated example annular ribs 2 and fitted with a partition J, which causes water, as in Field tubes, to move in each pipe up and down. With the usual device field pipes, i.e., when supplying them with a permanent partition, it is necessary to consider the difficulty of cleaning the inner walls of the pipe from the boiler stone, etc. In order to be able to perform the cleaning work quickly and reliably using known mechanical devices rotated from the motor It is necessary that the channel to be cleaned is round. In view of this, the partition j is made, according to the invention, removable. It is made of a relatively thin sheet metal, is made to widen the internal diameter of the pipe and is inserted into the latter by giving the strip the vaulted shape shown in FIG. 2 dotted line. Such a partition is held in place by virtue of its I springiness and it may be that if I need to clean the pipe from scale, it is removed from it, and after cleaning the pipe and the partition itself from the scale, it is re-installed in place after proper smoothing. The partition J fits snugly to the respective edge 4 of the distribution box and does not reach the bottom of the pipe /. In days; There are common plugs J for the squamous wall of the latter to remove the cleaned I scale and dirt.

Instead of a flat strip j, bendable, for the possibility of introducing it into the pipe /,

in the form of a shallow gutter, a flat strip can also be used, provided with one or more longitudinal waves, giving it a proper springiness.

It is important that the partition j is not connected to the pipe / tightly, but constitutes a separate, easily separable part from it, held in place by springback. Shallow grooves can be provided on one or both sides at the junction of the partition j against the pipe wall / to achieve complete impossibility of rotating the partition j around the axis of the pipe.

The pipes / are screwed to the distribution box using bolts 6 with nuts that are outside the path of the heated fluid and therefore do not hinder the circulation of the latter. Since bolts 6 must have two nuts and, since internal nuts are assembled, if you wish to tighten the bolts, you cannot hold the key, the proposed design uses four-sided elongated nuts, and the elongation of these nuts is such that pipes cannot rotate. Instead of rectangular-shaped nuts, normal square nuts can also be used, but in connection with grooved pads / 2 (Fig. 1), which eliminate the possibility of their rotation.

SUBJECT OF INVENTION.

An economizer for heating feedwater with hot gas dikes, consisting of a distribution box and Field pipes suspended from it, characterized in that the pipes / round sections are provided with an inlet wall j of relatively thin sheet iron that is not accessible to the bottom by a shallow the gutter, or the longitudinal waves present and held in place by virtue of its springiness.

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